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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-08 00:41:01 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-08 00:41:01 +0100
commitb424e8d3b438e841cd1700f6433a100a5d611e4a (patch)
tree545638d0b925de4c7f740286760767cca86cb91e /arch/arm
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 (diff)
parentPCI PM: Put PM callbacks in the order of execution (diff)
downloadlinux-b424e8d3b438e841cd1700f6433a100a5d611e4a.tar.xz
linux-b424e8d3b438e841cd1700f6433a100a5d611e4a.zip
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (98 commits) PCI PM: Put PM callbacks in the order of execution PCI PM: Run default PM callbacks for all devices using new framework PCI PM: Register power state of devices during initialization PCI PM: Call pci_fixup_device from legacy routines PCI PM: Rearrange code in pci-driver.c PCI PM: Avoid touching devices behind bridges in unknown state PCI PM: Move pci_has_legacy_pm_support PCI PM: Power-manage devices without drivers during suspend-resume PCI PM: Add suspend counterpart of pci_reenable_device PCI PM: Fix poweroff and restore callbacks PCI: Use msleep instead of cpu_relax during ASPM link retraining PCI: PCIe portdrv: Add kerneldoc comments to remining core funtions PCI: PCIe portdrv: Rearrange code so that related things are together PCI: PCIe portdrv: Fix suspend and resume of PCI Express port services PCI: PCIe portdrv: Add kerneldoc comments to some core functions x86/PCI: Do not use interrupt links for devices using MSI-X net: sfc: Use pci_clear_master() to disable bus mastering PCI: Add pci_clear_master() as opposite of pci_set_master() PCI hotplug: remove redundant test in cpq hotplug PCI: pciehp: cleanup register and field definitions ...
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/include/asm/mach/pci.h2
-rw-r--r--arch/arm/kernel/bios32.c27
-rw-r--r--arch/arm/mach-integrator/pci.c11
3 files changed, 3 insertions, 37 deletions
diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h
index 32da1ae17e06..a38bdc7afa34 100644
--- a/arch/arm/include/asm/mach/pci.h
+++ b/arch/arm/include/asm/mach/pci.h
@@ -42,7 +42,7 @@ struct pci_sys_data {
/*
* This is the standard PCI-PCI bridge swizzling algorithm.
*/
-u8 pci_std_swizzle(struct pci_dev *dev, u8 *pinp);
+#define pci_std_swizzle pci_common_swizzle
/*
* Call this with your hw_pci struct to initialise the PCI system.
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 17a59b6e521f..809681900ec8 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -480,33 +480,6 @@ EXPORT_SYMBOL(pcibios_bus_to_resource);
#endif
/*
- * This is the standard PCI-PCI bridge swizzling algorithm:
- *
- * Dev: 0 1 2 3
- * A A B C D
- * B B C D A
- * C C D A B
- * D D A B C
- * ^^^^^^^^^^ irq pin on bridge
- */
-u8 __devinit pci_std_swizzle(struct pci_dev *dev, u8 *pinp)
-{
- int pin = *pinp - 1;
-
- while (dev->bus->self) {
- pin = (pin + PCI_SLOT(dev->devfn)) & 3;
- /*
- * move up the chain of bridges,
- * swizzling as we go.
- */
- dev = dev->bus->self;
- }
- *pinp = pin + 1;
-
- return PCI_SLOT(dev->devfn);
-}
-
-/*
* Swizzle the device pin each time we cross a bridge.
* This might update pin and returns the slot number.
*/
diff --git a/arch/arm/mach-integrator/pci.c b/arch/arm/mach-integrator/pci.c
index af7d3ff013ec..2fdb95433f0a 100644
--- a/arch/arm/mach-integrator/pci.c
+++ b/arch/arm/mach-integrator/pci.c
@@ -63,13 +63,7 @@
*
* Where A = pin 1, B = pin 2 and so on and pin=0 = default = A.
* Thus, each swizzle is ((pin-1) + (device#-4)) % 4
- *
- * The following code swizzles for exactly one bridge.
*/
-static inline int bridge_swizzle(int pin, unsigned int slot)
-{
- return (pin + slot) & 3;
-}
/*
* This routine handles multiple bridges.
@@ -81,15 +75,14 @@ static u8 __init integrator_swizzle(struct pci_dev *dev, u8 *pinp)
if (pin == 0)
pin = 1;
- pin -= 1;
while (dev->bus->self) {
- pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
+ pin = pci_swizzle_interrupt_pin(dev, pin);
/*
* move up the chain of bridges, swizzling as we go.
*/
dev = dev->bus->self;
}
- *pinp = pin + 1;
+ *pinp = pin;
return PCI_SLOT(dev->devfn);
}